Home / 31,029.96-42,821.13-16,882.80

Finding the Fourth Proportional to 31,029.96, 42,821.13 and 16,882.80

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Solution

The fourth proportional to 31,029.96, 42,821.13 and 16,882.80 is: 23,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,029.96 : 42,821.13 = 16,882.80 : x
  2. Step 2: Convert to fraction form
    31,029.96/42,821.13 = 16,882.80/x
  3. Step 3: Cross multiply
    31,029.96x = 42,821.13 × 16,882.80
  4. Step 4: Simplify right side
    31,029.96x = 722,940,573.56
  5. Step 5: Solve for x
    x = 722,940,573.56/31,029.96
  6. Step 6: Final answer
    x = 23,298.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.